User`s manual

Industrial Secure Router User's Manual Firewall
8-13
Denial of Service (DoS) Defense
The Industrial Secure Router provides 9 different DoS functions for detecting or defining abnormal packet
format or traffic flow. The Industrial Secure Router will drop the packets when it detects an abnormal packet
format. The Industrial Secure Router will also monitor some traffic flow parameters and activate the defense
process when abnormal traffic conditions are detected.
Null Scan
Setting Description Factory Default
Enable or Disable Enable or disable the Null Scan None
Xmas Scan
Setting Description Factory Default
Enable or Disable Enable or disable the Xmas Scan None
NMAP-Xmas Scan
Setting Description Factory Default
Enable or Disable Enable or disable the NMAP-Xmas None
SYN/FIN Scan
Setting Description Factory Default
Enable or Disable Enable or disable the SYN/FIN Scan None
FIN Scan
Setting Description Factory Default
Enable or Disable Enable or disable the FIN Scan None
NMAP-ID Scan
Setting Description Factory Default
Enable or Disable Enable or disable the NMAP-ID Scan None
SYN/RST Scan
Setting Description Factory Default
Enable or Disable Enable or disable the SYN/RST Scan None
ICMP-Death
Setting Description Factory Default
Enable or Disable Enable or disable the ICMP-Death defense None
Packet/Second The limit value to activate ICMP-Death defense None
SYN-Flood
Setting Description Factory Default
Enable or Disable Enable or disable the Null Scan function None
Packet/Second The limit value to activate SYN-Flood defense None